The relationship between census results and the breeding population of birds in subalpine birch forests
Viittaaminen
Enemar, A., Höjman, S. G., Klaesson, P., & Nilsson, L. (1976). The relationship between census results and the breeding population of birds in subalpine birch forests. Ornis Fennica, 53(1), 1–8. Noudettu osoitteesta https://ornisfennica.journal.fi/article/view/132892